Redesign the copresence audio handlers.

components/copresence/rpc/rpc_handler_unittest.cc

Index: components/copresence/rpc/rpc_handler_unittest.cc
diff --git a/components/copresence/rpc/rpc_handler_unittest.cc b/components/copresence/rpc/rpc_handler_unittest.cc
index 77d61cb6f85f6d6a3aa3ad4974e7cba4b4103ab1..2cd10dd117a63d9508e43bba552553f4c3e88781 100644
--- a/components/copresence/rpc/rpc_handler_unittest.cc
+++ b/components/copresence/rpc/rpc_handler_unittest.cc
@@ -12,6 +12,7 @@
 #include "base/bind_helpers.h"
 #include "base/message_loop/message_loop.h"
 #include "components/copresence/handlers/directive_handler.h"
+#include "components/copresence/mediums/audio/audio_manager.h"
 #include "components/copresence/proto/data.pb.h"
 #include "components/copresence/proto/enums.pb.h"
 #include "components/copresence/proto/rpcs.pb.h"
@@ -47,8 +48,8 @@ class FakeDirectiveHandler : public DirectiveHandler {
   }
 
   virtual void Initialize(
-      const AudioRecorder::DecodeSamplesCallback& decode_cb,
-      const AudioDirectiveHandler::EncodeTokenCallback& encode_cb) override {}
+      const AudioManager::DecodeSamplesCallback& decode_cb,
+      const AudioManager::EncodeTokenCallback& encode_cb) override {}
 
   virtual void AddDirective(const Directive& directive) override {
     added_directives_.push_back(directive);